retry

func Do ¶

func Do(ctx context.Context, op func() error, retryable func(error) bool,
	attempts int, initial time.Duration) error

Do runs op until it returns nil, retryable returns false, the attempt budget is exhausted, or ctx is done. Backoff doubles each attempt. attempts counts total attempts including the first, so attempts=1 means no retry. Callers bound total wait time with context deadlines.